[sam woodson]

If I get GT40P heads I know they take special headers, I want long tube headers. Which companies make long tube headers for the GT40P?

Also, are the GT40P better than GT40, or the Thumper E7 heads?

For the same price which is better?

Note I have the E303 cam, mass air with 76mm C&L and plan on a new Upper/Lower intake of some type and a larger throttle body.

Thanks in advance!

[5SpeedGT]

BBK or MAC Long tubes work just fine on P heads with 90* spark plug boots. If you cut down a plug socket, you'll even be able to get all the plugs out without dropping them.

In stock form, the P's are slightly better than standard '40's. Thumpers E7 heads are great, equal to, or probably slightly better than GT40's, but they are already maxed out. The '40's will leave you some room to grow.

If you end up with stock Exploer Gt40's or P's, you will have to change the springs to work with that cam... Trick Flow makes a sweet kit for stock Ford heads that's relatively cheap. I'd personally ditch the E cam for a TFS Stage 1 while I was at it, but that's me.